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1. 发明授权

US4864286A Switch operation monitoring apparatus 失效
标题翻译：开关操作监控装置
公开(公告)号：US4864286A
公开(公告)日：1989-09-05
申请号：US180965
申请日：1988-04-13
申请人： Youichi Ohshita , Akira Hashimoto , Masanori Tsukushi , Yukio Kurosawa , Kiyoshi Okumura
发明人： Youichi Ohshita , Akira Hashimoto , Masanori Tsukushi , Yukio Kurosawa , Kiyoshi Okumura
IPC分类号： G01R31/327 , G01R31/333 , H01H1/00 , H01H33/00
CPC分类号： H01H1/0015
摘要： Disclosed is a switch operation monitoring apparatus for quickly and accurately detecting an abnormal operation of an actuating mechanism actuating a switch such as a power circuit breaker. A normal characteristic stroke of a moving part of the actuating mechanism is previously calculated on the basis of an interrupting current waveform, an environmental gas pressure and an actuating fluid pressure while taking into account the structure of the switch so as to use the calculated characteristic stroke as a reference stroke, and this reference stroke is compared with an actually measured characteristic stroke to decide whether the operation of the actuating mechanism actuating the switch is normal or abnormal.
摘要翻译：公开了一种开关操作监视装置，用于快速且准确地检测致动诸如电源断路器的开关的致动机构的异常操作。根据中断电流波形，环境气体压力和致动流体压力，预先计算出致动机构的运动部分的正常特征行程，同时考虑到开关的结构，以便使用计算出的特征行程作为参考行程，并将该参考行程与实际测量的特征行程进行比较，以确定致动该开关的致动机构的操作是正常还是异常。

2. 发明授权

US5155312A Puffer type gas circuit interrupter 失效
标题翻译：河豚式气体断路器
公开(公告)号：US5155312A
公开(公告)日：1992-10-13
申请号：US668128
申请日：1991-03-12
申请人： Akira Hashimoto , Youichi Ohshita , Kogi Ishikawa , Masanori Tsukushi , Yukio Kurosawa
发明人： Akira Hashimoto , Youichi Ohshita , Kogi Ishikawa , Masanori Tsukushi , Yukio Kurosawa
IPC分类号： H01H33/70 , H01H33/91 , H01H33/915
CPC分类号： H01H33/703
摘要： An interrupter including a gas pressurizer for pressurizing a gas to flow toward a forward end of at least one contact of the interrupter, and a first orifice forming a first space with the forward end of the at least one contact for passing the gas pressurized by the gas pressurizer when a flow of electric current is interrupted. A second orifice forms a second space with the at least one contact for passing the gas which passed through the first orifice, with a chamber being formed between the first and second orifices. The chamber has an inner diameter greater than an inner diameter of the first and second orifices. At least one pressurized gas passage is provided through which a portion of the pressurized gas is supplied to the chamber without passing the first orifice so that the pressurized gas supplied to the chamber through the pressurized gas passage flows to the first space formed by the forward end of the at least one contact and the first orifice.
摘要翻译：一种断续器，包括用于对气体进行加压的气体加压器，以朝向所述断流器的至少一个触点的前端流动;以及第一孔口，其与所述至少一个接触件的前端形成第一空间，用于使由当电流中断时气体加压器。第二孔形成具有至少一个接触件的第二空间，用于使通过第一孔口的气体通过，腔室形成在第一和第二孔口之间。腔室具有大于第一和第二孔口的内径的内径。提供至少一个加压气体通道，通过该至少一个加压气体通道将一部分加压气体供给到室而不通过第一孔，使得通过加压气体通道供应到室的加压气体流到由前端形成的第一空间的至少一个触点和第一孔。

3. 发明授权

US5502290A Switch mechanism 失效
标题翻译：开关机构
公开(公告)号：US5502290A
公开(公告)日：1996-03-26
申请号：US483878
申请日：1995-06-07
申请人： Osamu Koyanagi , Kunio Hirasawa , Masanori Tsukushi , Yukio Kurosawa , Tadashi Sato , Youichi Ohshita
发明人： Osamu Koyanagi , Kunio Hirasawa , Masanori Tsukushi , Yukio Kurosawa , Tadashi Sato , Youichi Ohshita
IPC分类号： H01H33/34 , H01H33/56
CPC分类号： H01H33/34 , H01H33/563
摘要： A switching mechanism for use e.g. in a circuit breaker of an underground electric substation has a movable rod which causes opening and closing of an electrical contact and a hydraulic operating system. The hydraulic operating system uses a hydraulic fluid which has a high flammability temperature or is incombustible. Thus, even if such fluid leaks from the hydraulic operating system, the risk of fire or explosion is minimized. The hydraulic operating system may have a sealed tank for the fluid, preferably with a variable volume expansion chamber. In a further development, the hydraulic operating system and possibly parts of the movable rod, is enclosed in a casing which is sealed and is filled with a gas which does not support combustion therein. Thus, the risk of fire or explosion is further reduced. The casing may have a variable volume expansion chamber.
摘要翻译：一种切换机制。在地下电力变电站的断路器中具有使电触头和液压操作系统打开和关闭的活动杆。液压操作系统使用具有高可燃性温度或不燃的液压油。因此，即使这种液体从液压操作系统泄漏，也会使火灾或爆炸的风险最小化。液压操作系统可以具有用于流体的密封罐，优选地具有可变体积膨胀室。在进一步的发展中，液压操作系统和可能的可移动杆的部分被封装在密封的壳体中并且填充有不支持燃烧的气体。因此，进一步降低了火灾或爆炸的危险。壳体可以具有可变体积膨胀室。

4. 发明授权

US5274205A Gas blast, puffer type circuit breaker with improved nozzle 失效
标题翻译：鼓风式，河豚式断路器，改良喷嘴
公开(公告)号：US5274205A
公开(公告)日：1993-12-28
申请号：US37529
申请日：1993-03-26
申请人： Masanori Tsukushi , Akira Hashimoto , Minori Satoh , Yukio Kurosawa , Kunio Hirasawa , Fumihiro Endo , Tokio Yamagiwa
发明人： Masanori Tsukushi , Akira Hashimoto , Minori Satoh , Yukio Kurosawa , Kunio Hirasawa , Fumihiro Endo , Tokio Yamagiwa
IPC分类号： H01H33/70 , H01H33/88
CPC分类号： H01H33/703 , H01H33/7076
摘要： A gas blast circuit breaker comprises an insulation nozzle for blowing extinguishing gas to an arc generated between a stationary contact and a movable contact. The nozzle has a throat section into and out of which one of the two contacts is movable and a divergent section provided downstream of the throat section. A slanting surface for increasing a reflectivity of energy intensity of the arc is formed on the divergent section of the nozzle. The nozzle is formed of a fluoroplastic material and boron nitride powder of not more than 15 vol. % is added as a filler.
摘要翻译：燃气断路器包括用于将灭火气体吹送到在固定触点和可动触头之间产生的电弧的绝缘喷嘴。喷嘴具有进入和离开两个触点中的一个可移动的喉部，以及设置在喉部的下游的发散部分。在喷嘴的发散部分上形成用于增加电弧能量强度的反射率的倾斜表面。喷嘴由氟塑料材料和不超过15体积的氮化硼粉末形成。加入％作为填料。

5. 发明授权

US5229561A Puffer-type gas circuit breaker 失效
标题翻译： PUFFER型气体断路器
公开(公告)号：US5229561A
公开(公告)日：1993-07-20
申请号：US838335
申请日：1992-02-20
申请人： Yasuharu Seki , Masanori Tsukushi , Akira Hashimoto , Yukio Kurosawa
发明人： Yasuharu Seki , Masanori Tsukushi , Akira Hashimoto , Yukio Kurosawa
IPC分类号： H01H33/74 , H01H33/70 , H01H33/90 , H01H33/91 , H01H33/915
CPC分类号： H01H33/901 , H01H2033/902 , H01H33/7061
摘要： A puffer type gas circuit breaker includes arc extinguishing gas filled in the interior of the gas circuit breaker, fixed contact, a movable contact disposed in an opposed relationship with respect to the fixed contact so as to come into contact therewith, a fixed piston and a drive shaft slidably extends through the fixed piston, and drives the movable contact toward and away from the fixed contact. A puffer cylinder is slidably fitted on the fixed piston, with the puffer cylinder cooperating with the fixed piston to define a puffer chamber, within the puffer cylinder. An outer cylinder is mounted on an outer periphery of the puffer cylinder to form a thermal puffer chamber outside the puffer cylinder. A cover covers an outer surface of the movable contact, with a first insulating nozzle surrounding the cover to form a first gas flow passage for guiding the arc extinguishing gas from the puffer chamber to an arc generating portion. A second insulating nozzle surrounds the first insulating nozzle to form a second gas flow passage for guiding the arc extinguishing gas from the thermal puffer chamber to the arc generating portion.

6. 发明授权

US5391930A Circuit breaker with parallel resistor 失效
标题翻译：具有并联电阻的断路器
公开(公告)号：US5391930A
公开(公告)日：1995-02-21
申请号：US887937
申请日：1992-05-26
申请人： Youichi Ohshita , Katuichi Kashimura , Akira Hashimoto , Osamu Koyanagi , Yukio Kurosawa , Isao Nishida
发明人： Youichi Ohshita , Katuichi Kashimura , Akira Hashimoto , Osamu Koyanagi , Yukio Kurosawa , Isao Nishida
IPC分类号： H01H33/16 , H01H33/24
CPC分类号： H01H33/168 , H01H33/24 , Y10T307/76
摘要： A circuit breaker with a parallel resistor which fulfills with a simple structure incompatible requirements for a resistance circuit making contact with regard to maintenance of the dielectric strength and prearcing characteristic between electrodes. A resistance circuit making contact 2 and a resistance circuit breaking contact 3 are electrically connected in parallel, one end of the parallel circuit is connected to one end of a common resistor and the other end of the parallel circuit and the other end of the resistor are connected to the respective ends of a main contact 1. After the opening of the resistance circuit making contact 2 the resistance circuit breaking contact 3 is still closed.
摘要翻译：具有并联电阻器的断路器，其结构简单，与电阻电路不兼容的要求相关，以保持电极之间的介电强度和预焊特性。使接点2和电阻断路触头3的电阻电路并联电连接，并联电路的一端连接到公共电阻的一端，并联电路的另一端和电阻的另一端连接到主触点1的相应端。在电阻回路接通2打开之后，电阻断路触点3仍然闭合。

7. 发明授权

US5793597A Puffer type gas breaker 失效
标题翻译：吹气式气体断路器
公开(公告)号：US5793597A
公开(公告)日：1998-08-11
申请号：US587656
申请日：1996-01-17
申请人： Eisaku Mizufune , Yukio Kurosawa , Katsuichi Kashimura , Osamu Koyanagi , Yoshihito Asai , Kogi Ishikawa , Ken'ichi Natsui , Masanori Tsukushi , Makoto Yano , Goro Daimon , Kenji Tsuchiya
发明人： Eisaku Mizufune , Yukio Kurosawa , Katsuichi Kashimura , Osamu Koyanagi , Yoshihito Asai , Kogi Ishikawa , Ken'ichi Natsui , Masanori Tsukushi , Makoto Yano , Goro Daimon , Kenji Tsuchiya
IPC分类号： H01H33/70 , H01H73/00
CPC分类号： H01H33/7015 , H01H2033/888
摘要： A puffer type gas breaker is provided, in which high-temperature gas, heated by an electric arc produced immediately after a large current is broken, is quickly discharged to enhance inter-pole dielectric performance. A fixing portion for fixing an arc contact is provided in a cylindrical exhaust pipe for exhausting the high-temperature gas heated by an electric arc produced between poles immediately after a large current is broken. A rectifying member or members is provided in the fixing portion of the cylindrical exhaust pipe. An exhaust port or ports is formed in the fixing portion of the cylindrical exhaust pipe, and a shield is disposed around the outer periphery of the exhaust port or ports.
摘要翻译：提供了一种吹气式气体断路器，其中在大电流断开后立即产生的电弧加热的高温气体被快速放电，以增强极间介电性能。在圆弧形排气管中设置用于固定电弧接触的固定部分，用于在大电流断开之后立即排出由立柱之间产生的电弧加热的高温气体。整流构件设置在圆筒形排气管的固定部分中。在圆柱形排气管的固定部分中形成排气口或排气口，并且在排气口的外周附近设有防护罩。

8. 发明授权

US5079392A Gas circuit breaker 失效
公开(公告)号：US5079392A
公开(公告)日：1992-01-07
申请号：US543440
申请日：1990-06-26
申请人： Masanori Tsukushi , Osamu Koyanagi , Yashuharu Seki , Yukio Kurosawa
发明人： Masanori Tsukushi , Osamu Koyanagi , Yashuharu Seki , Yukio Kurosawa
IPC分类号： H01H33/90 , H01H33/91 , H01H33/915
CPC分类号： H01H33/91 , H01H33/901
摘要： A gas circuit breaker comprising a pair of contactors contact portions of which are separable relatively from each other, an insulating nozzle of an electrically insulating material surrounding the contact portions of said contactors so as to guide a flow of gas, and a puffer chamber for compressing the gas in conjunction with a separating operation of the contact portions so as to supply it under guidance of the insulating nozzle, the gas from the puffer chamber being exhausted through exhaust passages passing through a hollow portion of the one contactor located within the insulating nozzle, wherein the exhaust passages are formed between the puffer chamber and the one contactor, and the gas circuit breaker further comprises block means serving to close during an initial stage of the separating operation and open afterward exhaust ports formed at ends of the exhaust passages located on the downstream side of the gas flow. This makes it possible to reduce the flow resistance to the gas flow used for arc extinguishment in cooperation with an arc-extinguishing gas flow passing through a throat portion of the insulating nozzle as well as to reduce a force required for operation.

9. 发明授权

US5079391A Puffer type gas circuit breaker, contact cover and insulated nozzle of the breaker 失效
标题翻译：河豚式气体断路器，接触盖和断路器绝缘喷嘴
公开(公告)号：US5079391A
公开(公告)日：1992-01-07
申请号：US604227
申请日：1990-10-29
申请人： Osamu Koyanagi , Masanori Tsukushi , Yasuharu Seki , Yukio Kurosawa
发明人： Osamu Koyanagi , Masanori Tsukushi , Yasuharu Seki , Yukio Kurosawa
IPC分类号： H01H33/70 , H01H33/91 , H01H33/915
CPC分类号： H01H33/91 , H01H33/7015
摘要： A puffer type gas circuit breaker having at least one pair of a stationary contact and a movable contact capable of being separated from each other, a pressure producing section including a puffer cylinder and a puffer piston. The puffer cylinder is connected to the movable contact and serves to compress an arc extinguishing gas blown to an arc generated between the contacts at the time of current breaking. The breaker also has a cover surrounding the movable contact, an insulated nozzle extending from the puffer cylinder and surrounding the cover and the stationary contact to form a flow passage through which the compressed gas is supplied from the puffer cylinder to the generated arc, and a flow straightening member provided in said flow passage. The flow straightening member extends from the puffer cylinder and is mounted on the cover, and the flow passage has an expanded section having a gas flow sectional area larger than that of the section of the flow passage upstream of the expanded section.
摘要翻译：一种吹气式气体断路器，其具有至少一对固定触点和能够彼此分离的可动触头，压力产生部分包括吹气缸和冲压活塞。吹气圆筒连接到可动触头，用于在当前断裂时压缩在触头之间产生的电弧中被吹送的灭弧气体。断路器还具有围绕可动触头的盖，从吹气缸延伸并围绕盖和固定触点的绝缘喷嘴，以形成流动通道，压缩气体通过该流路从吹气缸供应到产生的电弧，设置在所述流路中的流动矫直构件。流动矫正构件从吹气缸延伸并安装在盖上，并且流动通道具有膨胀部分，其具有比扩张部分上游的流动通道部分的气体流动截面积大的膨胀部分。

10. 发明授权

US5039831A Circuit breaker 失效
公开(公告)号：US5039831A
公开(公告)日：1991-08-13
申请号：US328559
申请日：1989-03-24
申请人： Minori Sato , Kastuichi Kashimura , Masanori Tsukushi , Yukio Kurosawa , Kazuhiro Saito , Osamu Koyanagi , Isao Nishida
发明人： Minori Sato , Kastuichi Kashimura , Masanori Tsukushi , Yukio Kurosawa , Kazuhiro Saito , Osamu Koyanagi , Isao Nishida
IPC分类号： H01H33/16 , H01H33/24 , H02B11/26
CPC分类号： H02B11/26 , H01H33/16 , H01H33/24 , H02B13/035
摘要： In a circuit breaker in which an interrupting device, a resistor device and a capacitor device are connected in parallel, a shield device is arranged to shield the interrupting device and the resistor device and comprises a first shield for shielding the stationary main contact and stationary resistor contact and a second shield for shielding the movable main contact and movable resistor contact. Each of the first shield and the second shield comprises a large shield portion and a small shield portion, and the small shield portions are arranged between the large shield portions. The small shield portion terminates in the vicinity of the top of the main contact and of the top of the resistor contact. The small shield portion comprises wide portions situated substantially in the direction of an axis joining centers of the main contact and resistor contact and narrow portions situated substantially in the direction perpendicular to the axis. The width of the narrow portions is smaller than the width of the wide portions, and at least a part of the capacitor device is arranged over the narrow portions.In the circuit breaker, since the capacitor device is arranged over the narrow portions, the space for arranging the capacitor device is larger than the conventional circuit breaker, the arrangement of the isoelectric liens is not disturbed or disordered locally in the vicinity of the top of the shield of the stationary main contact and in the vicinity of the movable main contact and high dielectric strength between the main contacts is obtained.

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